Carburetor for heavy oils



Sept. 12, 1933. R. OPPENHEIM CARBURETOR FOR HEAVY OILS Filed April 29, 1951 per flktorlzey Patented Sept. 12, 1933 STATES PATENT OFFICE CARBURETOR FOR HEAVY OILS Ren Oppenheim, Gennevilliers, France, assignor to Societe Anonyme Le Oarbone, Gennevillicrs,

(Seine) France Application April 29, 1931, Serial No. 533,660, and in France June 5, 1930 1 Claim.

This invention relates to improvements in carburetors for heavy oils particularly for use in connection with internal combustion engines.

In known carburetors for this purpose a rich 5 emulsion of the liquid carburant is employed which comes into contact with the heated walls of the carburetor which are coated with very p0- rous carbon, such as activated carbon.

The object of the invention is to prevent the formation of deposits, such as tar or the like, on

any part of the carburetor so as to avoid ineflicient or faulty working of the apparatus due to choking and to this end according to the invention carbon, which may be activated carbon is applied to the walls of the ducts leading from the heated chamber or in a modification the carbon may be in the form of a block inserted in the ducts.

In order that the invention may be fully understood it will now be described with reference to the accompanying drawing which illustrates, by way of example, a form of carburetor made according to the invention, and in which:

Figure 1 is a vertical section and Figure 2 is a vertical section on the line X-X of Figure 1.

The constant level chamber a feeds, in the usual manner, the spray nozzle b, which produces a rich emulsion by mixture of the atomized liquid with the air sucked in through the orifice 0 under the action of the suction of the motor. This emulsion circulates in an annular chamber 2' formed by the juxtaposition of two carbon rings (1 contained within the casing 1' which is constructed of any suitable metal. The chamber i is heated by any suitable means, for example, by direct contact of at least one of the walls of the metallic casing with a chamber 9 which is traversed by the exhaust gases (in amount regulatable at will). Under the influence of the carbon walls thus heated, the rich emulsion is transformed into gas and vapors which are carried away through a duct e, which leads them into the inlet manifold h of the motor. The secondary air necessary for the carburation is led through the conduit 1, which may be provided with means for regulating the quantity of air to be sucked in. The walls of theduct e are coated with activated carbon k (and it may even be filled with carbon). In this manner, any harmful deposit of tar or other products may be avoided, experience having shown that such a deposit cannot form on a wall of this construction. It will be understood that the carbon may be applied in a variety of ways depending on the construction of any particular carburetor without departing from the scope of the invention.

All the details of execution and working may be varied as may suit the particular carburetor without changing the principle of the invention.

I claim:

A carburetor for heavy oils, including the combination, with a fuel supply nozzle and an intake manifold for a motor, of a casing containing a transformation chamber and having an inlet port adjacent to said'fuel supply nozzle and a connection to said intake manifold, and protecting means associated with said carburetor for preventing undesirable deposits from the oils, including a coating of activated carbon disposed upon and covering the interior walls of said transformation chamber, said inlet port and said connection to the manifold.

RENE OPPENHEIM. 

